diff --git a/math/py-rpy2/Makefile b/math/py-rpy2/Makefile
index 2af1afe95b57..6c770682e29a 100644
--- a/math/py-rpy2/Makefile
+++ b/math/py-rpy2/Makefile
@@ -1,34 +1,35 @@
 # Created by: ijliao
 # $FreeBSD$
 
 PORTNAME=	rpy2
 DISTVERSION=	3.0.3
+PORTREVISION=	1
 CATEGORIES=	math
 MASTER_SITES=	CHEESESHOP
 PKGNAMEPREFIX=	${PYTHON_PKGNAMEPREFIX}
 
 MAINTAINER=	sunpoet@FreeBSD.org
 COMMENT=	Python interface to the R Programming Language
 
 LICENSE=	GPLv2+
 LICENSE_FILE=	${WRKSRC}/gpl-2.0.txt
 
 BUILD_DEPENDS=	${PYTHON_PKGNAMEPREFIX}cffi>=1.0.0:devel/py-cffi@${PY_FLAVOR}
 LIB_DEPENDS=	libR.so:math/R \
 		libicui18n.so:devel/icu \
 		libomp.so:devel/openmp \
 		libpcre.so:devel/pcre
 RUN_DEPENDS=	${PYTHON_PKGNAMEPREFIX}cffi>=1.0.0:devel/py-cffi@${PY_FLAVOR} \
 		${PYTHON_PKGNAMEPREFIX}Jinja2>0:devel/py-Jinja2@${PY_FLAVOR} \
 		${PYNUMPY} \
 		${PYTHON_PKGNAMEPREFIX}simplegeneric>=0:devel/py-simplegeneric@${PY_FLAVOR}
 
 USES=		fortran python:3.5+ readline
 USE_PYTHON=	autoplist distutils
 
 NO_ARCH=	yes
 
 pre-build:
 	cd ${WRKSRC}/ && ${PYTHON_CMD} rpy/_rinterface_cffi_build.py
 
 .include <bsd.port.mk>
diff --git a/math/py-rpy2/files/patch-rpy-situation.py b/math/py-rpy2/files/patch-rpy-situation.py
new file mode 100644
index 000000000000..474f0827b7f5
--- /dev/null
+++ b/math/py-rpy2/files/patch-rpy-situation.py
@@ -0,0 +1,11 @@
+--- rpy/situation.py.orig	2019-05-05 16:29:19 UTC
++++ rpy/situation.py
+@@ -63,7 +63,7 @@ def r_home_from_registry():
+ 
+ def get_rlib_path(r_home: str, system: str) -> str:
+     """Get the path for the R shared library."""
+-    if system == 'Linux':
++    if system == 'FreeBSD' or system == 'Linux':
+         lib_path = os.path.join(r_home, 'lib', 'libR.so')
+     elif system == 'Darwin':
+         lib_path = os.path.join(r_home, 'lib', 'libR.dylib')